BH1416F

BH1416F Audio ICs Wireless Audio Link IC BH1416F The BH1416F is a FM stereo transmitter IC that transmits simple configuration. The IC consists of a stereo modulator for generating stereo composite signals and a FM transmitter for broadcasting a FM signal on the air. The stereo modulator generates a composite signal which consists of the MAIN, SUB, and pilot signal from a 38kHz oscillator. The FM transmitter radiates FM wave on the air by modulating the carrier signal with a composite signal. zApplications Wireless speakers, Personal computer(sound board), Game machine, CD changer, Car TV, Car navigation zFeatures 1) It is possible to improve the timbre because it has the pre-emphasis circuit, limiter circuit, and the low-pass filter circuit. 2) Built-in pilot-tone system FM stereo modulator circuit. 3) The transmission frequency is stable because it has a PLL system FM transmitter circuit. 4) PLL controls data input in parallel (4bits, 14ch). zAbsolute maximum ratings (Ta = 25°C, In measurement circuit.) Parameter Supply voltage Symbol VCC Limits +7.0 −0.3 to VCC+0.3 −0.3 to VCC+0.3 450 ∗ Unit V V V mW Pin8,12 Conditions Date input voltage Phase comparator output voltage Power dissipation Storage temperature VIN-D VOUT-P Pd Tstg Pin15,16,17,18 Pin7 −55 to +125 °C ∗ Derating : 4.5mW/°C for operation above Ta=25°C. zRecommended operating conditions (Ta = 25°C) Parameter Operating supply voltage Symbol VCC Min. 4.0 −40 − 20 − 76.8 88.0 0.8VCC GND Typ. − − − − − − −...